10021219 has 4 divisors (see below), whose sum is σ = 10792096. Its totient is φ = 9250344.

The previous prime is 10021217. The next prime is 10021237. The reversal of 10021219 is 91212001.

10021219 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91212001 = 173 ⋅527237.

It is a cyclic number.

It is not a de Polignac number, because 10021219 - 2¹ = 10021217 is a prime.

It is a super-2 number, since 2×10021219² = 200849660491922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10021213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 385419 + ... + 385444.

It is an arithmetic number, because the mean of its divisors is an integer number (2698024).

Almost surely, 2^10021219 is an apocalyptic number.

10021219 is a deficient number, since it is larger than the sum of its proper divisors (770877).

10021219 is an equidigital number, since it uses as much as digits as its factorization.

10021219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770876.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 10021219 is about 3165.6309007842. The cubic root of 10021219 is about 215.5957445151.

The spelling of 10021219 in words is "ten million, twenty-one thousand, two hundred nineteen".